Where does “luir” come from?

luir (Old Cornish) comes from Proto-Brythonic lloɨr, from Proto-Celtic lugrā, from Proto-Indo-European lewḱ-, from Proto-Indo-European lewk- — bright; to shine; to see.

Ancestry of “luir”, step by step

luir traces back through two separate lines of ancestry.

via Proto-Brythonic lloɨr

StepLanguageWordMeaning
1Proto-Brythoniclloɨrmoon
2Proto-Celticlugrā
3Proto-Indo-Europeanlewḱ-lynx
4Proto-Indo-Europeanlewk-bright; to shine; to see

via Latin luō

StepLanguageWordMeaning
1Latinluōto wash
2Proto-Indo-Europeanlewh₃-to wash

Words derived from “luir

Every word from Proto-Indo-European lewk-Every word from Proto-Indo-European lewḱ-Every word from Proto-Celtic lugrā